Operation; The Welding Process; Completing The Welding Process - Kemppi A7 MIG Gun 500-g Operating Manual

12. OPERATION

Shortness of breath and poisoning caused by inhaling
phosgene gas
Phosgene gas is formed during the welding of work pieces
that have been degreased with chlorine-containing
solvents.
Do not inhale fumes and vapors.
Ensure a sufficient supply of fresh air.
Rinse the work pieces with clear water prior to welding.
Do not place degreasing baths containing chlorine in the
vicinity of the welding area.
Risk of burns
During welding work that sprays sparks, glowing work
pieces or hot slag can produce flames.
Check the work area for seats of fire.
Make suitable fire-extinguishing materials available in the
work location.
Allow the work pieces to cool down after welding.
Before performing welding work, fasten the ground clamp
properly to the work piece or the welding table.
Dazzling of the eyes
The arc produced by welding may damage the eyes.
Wear suitable protective clothing and eye protection.
The welding torch may only be operated by qualified
personnel.
Ensure that all required parameters, such as the welding
current and wire feed, have been set at the welding power
supply in accordance with your welding task.

12.1 The welding process

This section describes the welding process.
Proceed as follows:
1. Open the shielding gas cylinder.
2. Switch on the power supply.

12.2 Completing the welding process

This section describes how to quit when the welding
process has been done.
Proceed as follows:
1. Wait until the shielding gas flow has subsided.
2. Close the shut off valve for the gas supply.
3. Switch off the power supply.
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© Kemppi Oy 2016 A7 MIG Gun 500-g 1616